Microsoft and OpenAI broke up — now they’re ready to fight

Explain Like I'm Normal

Microsoft is aggressively diversifying its AI strategy by developing in-house reasoning models and agentic tools that directly compete with OpenAI's core offerings. This shift signals a move away from their total dependence on Sam Altman's team as Redmond builds its own end-to-end AI ecosystem. The honeymoon phase of the tech world's most powerful alliance is officially over.